Transport Of Heavy-Metals Through Accumulated Sediments In Wet Ponds

    Authors

    Y. A. Yousef; L. Lin; W. Lindeman;T. Hvitvedjacobsen

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Sci. Total Environ.

    Keywords

    HIGHWAY RUNOFF; DETENTION PONDS; BOTTOM SEDIMENTS; METAL ACCUMULATION; METAL TRANSPORT; Environmental Sciences

    Abstract

    Nine detention ponds in Florida were selected to investigate heavy-metal accumulation in their bottom sediments. Core sediment samples were collected from each pond, frozen and divided into six layers. The total metal content and extractable metal by toxicity characteristic leaching procedure (TCLP) were determined for each sediment layer in each pond. The fractions of extractable metals using TCLP exhibited an exponential decline with increasing fine particles (less than 0.062 mm diameter) and organic content. Most of these metals are tightly bound to the bottom sediments, and their transport is very slow. It is feasible to remove the accumulated sediments saturated with metals from the bottom of the ponds for periodic maintenance at relatively long periods, averaging 25 years, to avoid seepage and potential contamination of groundwater beneath the pond.

    Journal Title

    Science of the Total Environment

    Volume

    147

    Publication Date

    1-1-1995

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    485

    Last Page

    491

    WOS Identifier

    WOS:A1994NN06400062

    ISSN

    0048-9697

    Share

    COinS